期刊
JOURNAL OF PHYSICAL CHEMISTRY A
卷 112, 期 51, 页码 13699-13705出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp808181n
关键词
-
资金
- U.S. Army Research Office
- U.S. Defense Threat Reduction Agency (DTRA)
Using ab initio density functional theory methods, the optimized structure of the single-, double-, and triple-layered graphene nanoribbons with different stacking orders and edges is calculated along with their Raman spectrums. For each case studied, graphene is found to be a potential source of vibrational signals in the terahertz region of the spectrum when molecules or another layer are adsorbed in the surface; this effect is independent of the hydrogen presence at the edges, and the stacking order. The visible low-frequency modes increase with the addition of graphene layers, and the number of modes may be influenced by the type of edges. The monolayer shows better performance due to the lower number of vibrational modes. The nanoribbon with fewer modes at the terahertz range is used to show a potential application of graphene acting as,I sensor of single molecules.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据